Social EngineeringIdentity (basic)Government IDMediumContained

First State Bank of Middlebury

bd_ac09a833d16a374b · schema v1 · pii pii-v2

Severity

Medium

Discovered

Oct 30, 2025

Filed

Jan 28, 2026

To disclose

—

Affected

Not disclosed

Confidence

65%

Full breach record for First State Bank of Middlebury →

First State Bank of Middlebury notified Nebraska residents of a cybersecurity event involving unauthorized access to a single employee email account on October 30, 2025. The breach exposed names and potentially government identifiers (SSN, DOB). The bank secured the account, engaged forensic specialists, and offered 12 months of credit monitoring via Cyberscout/TransUnion. Notification letters were dated January 28, 2026.

J jump to incidentP pin to compareR raw source

Incident timeline

Oct 30, 2025

Begins

Oct 30, 2025

Discovered

Jan 28, 2026

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Name: First State Bank of Middlebury
norm: first state bank of middlebury

Name: First State Bank of Middlebury
norm: first state bank of middlebury

Discovered: Oct 30, 2025
Breach occurred: Oct 30, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 28, 2026
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Initial access: phishing_link

During the incident: Secured the relevant email account
Engaged third-party forensic specialists
Implemented additional security measures to further enhance our cybersecurity infrastructure
Revised and implemented additional policies and procedures regarding data
Providing additional training to our workforce
Offering you access to 12 months of credit monitoring and identity protection services through Cyberscout
Changes made: Implemented additional security measures to further enhance our cybersecurity infrastructure
Revised and implemented additional policies and procedures regarding data
Providing additional training to our workforce
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://nebraska.gov/ago/data-breach/documents/7c22a7b8-9c69-493d-aa1f-cd00efcc4617.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 28, 2026
Raw hash: fd17096d28d5b194340852ac104003a3886019c208c43611fad006c3ec7172f0

Reporting entityFirst State Bank of Middlebury

Victim entityFirst State Bank of Middlebury

Incidentdiscovered Oct 30, 2025

Stated responseSecured the relevant email account

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov